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Finding the Fourth Proportional to 117,359,893.80, 176,039,840.70 and 112,384,031.40

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Solution

The fourth proportional to 117,359,893.80, 176,039,840.70 and 112,384,031.40 is: 168,576,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,359,893.80 : 176,039,840.70 = 112,384,031.40 : x
  2. Step 2: Convert to fraction form
    117,359,893.80/176,039,840.70 = 112,384,031.40/x
  3. Step 3: Cross multiply
    117,359,893.80x = 176,039,840.70 × 112,384,031.40
  4. Step 4: Simplify right side
    117,359,893.80x = 19,784,066,984,879,796
  5. Step 5: Solve for x
    x = 19,784,066,984,879,796/117,359,893.80
  6. Step 6: Final answer
    x = 168,576,047.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.