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Finding the Fourth Proportional to 72,356.76, 99,854.10 and 40,532.13

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Solution

The fourth proportional to 72,356.76, 99,854.10 and 40,532.13 is: 55,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,356.76 : 99,854.10 = 40,532.13 : x
  2. Step 2: Convert to fraction form
    72,356.76/99,854.10 = 40,532.13/x
  3. Step 3: Cross multiply
    72,356.76x = 99,854.10 × 40,532.13
  4. Step 4: Simplify right side
    72,356.76x = 4,047,299,362.23
  5. Step 5: Solve for x
    x = 4,047,299,362.23/72,356.76
  6. Step 6: Final answer
    x = 55,935.33

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1.5x scale

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.