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Finding the Fourth Proportional to 113,802.52, 157,028.68 and 63,501.40

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Solution

The fourth proportional to 113,802.52, 157,028.68 and 63,501.40 is: 87,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,802.52 : 157,028.68 = 63,501.40 : x
  2. Step 2: Convert to fraction form
    113,802.52/157,028.68 = 63,501.40/x
  3. Step 3: Cross multiply
    113,802.52x = 157,028.68 × 63,501.40
  4. Step 4: Simplify right side
    113,802.52x = 9,971,541,020.15
  5. Step 5: Solve for x
    x = 9,971,541,020.15/113,802.52
  6. Step 6: Final answer
    x = 87,621.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.