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Finding the Fourth Proportional to 117,526.80, 176,405.40 and 58,429.20

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Solution

The fourth proportional to 117,526.80, 176,405.40 and 58,429.20 is: 87,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,526.80 : 176,405.40 = 58,429.20 : x
  2. Step 2: Convert to fraction form
    117,526.80/176,405.40 = 58,429.20/x
  3. Step 3: Cross multiply
    117,526.80x = 176,405.40 × 58,429.20
  4. Step 4: Simplify right side
    117,526.80x = 10,307,226,397.68
  5. Step 5: Solve for x
    x = 10,307,226,397.68/117,526.80
  6. Step 6: Final answer
    x = 87,701.07

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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.