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Finding the Fourth Proportional to 105,407.52, 157,857.92 and 60,292.16

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Solution

The fourth proportional to 105,407.52, 157,857.92 and 60,292.16 is: 90,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,407.52 : 157,857.92 = 60,292.16 : x
  2. Step 2: Convert to fraction form
    105,407.52/157,857.92 = 60,292.16/x
  3. Step 3: Cross multiply
    105,407.52x = 157,857.92 × 60,292.16
  4. Step 4: Simplify right side
    105,407.52x = 9,517,594,969.91
  5. Step 5: Solve for x
    x = 9,517,594,969.91/105,407.52
  6. Step 6: Final answer
    x = 90,293.32

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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.