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Finding the Fourth Proportional to 93,319.68, 128,781.16 and 53,033.52

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Solution

The fourth proportional to 93,319.68, 128,781.16 and 53,033.52 is: 73,186.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,319.68 : 128,781.16 = 53,033.52 : x
  2. Step 2: Convert to fraction form
    93,319.68/128,781.16 = 53,033.52/x
  3. Step 3: Cross multiply
    93,319.68x = 128,781.16 × 53,033.52
  4. Step 4: Simplify right side
    93,319.68x = 6,829,718,224.48
  5. Step 5: Solve for x
    x = 6,829,718,224.48/93,319.68
  6. Step 6: Final answer
    x = 73,186.26

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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.