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Finding the Fourth Proportional to 82,887.81, 124,332.57 and 66,352.97

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Solution

The fourth proportional to 82,887.81, 124,332.57 and 66,352.97 is: 99,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,887.81 : 124,332.57 = 66,352.97 : x
  2. Step 2: Convert to fraction form
    82,887.81/124,332.57 = 66,352.97/x
  3. Step 3: Cross multiply
    82,887.81x = 124,332.57 × 66,352.97
  4. Step 4: Simplify right side
    82,887.81x = 8,249,834,665.57
  5. Step 5: Solve for x
    x = 8,249,834,665.57/82,887.81
  6. Step 6: Final answer
    x = 99,530.13

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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.