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Finding the Fourth Proportional to 117,900.80, 176,851.20 and 99,238.40

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Solution

The fourth proportional to 117,900.80, 176,851.20 and 99,238.40 is: 148,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,900.80 : 176,851.20 = 99,238.40 : x
  2. Step 2: Convert to fraction form
    117,900.80/176,851.20 = 99,238.40/x
  3. Step 3: Cross multiply
    117,900.80x = 176,851.20 × 99,238.40
  4. Step 4: Simplify right side
    117,900.80x = 17,550,430,126.08
  5. Step 5: Solve for x
    x = 17,550,430,126.08/117,900.80
  6. Step 6: Final answer
    x = 148,857.60

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1.5x scale

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.