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Finding the Fourth Proportional to 112,332.60, 155,019 and 62,031.60

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Solution

The fourth proportional to 112,332.60, 155,019 and 62,031.60 is: 85,603.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,332.60 : 155,019 = 62,031.60 : x
  2. Step 2: Convert to fraction form
    112,332.60/155,019 = 62,031.60/x
  3. Step 3: Cross multiply
    112,332.60x = 155,019 × 62,031.60
  4. Step 4: Simplify right side
    112,332.60x = 9,616,076,600.40
  5. Step 5: Solve for x
    x = 9,616,076,600.40/112,332.60
  6. Step 6: Final answer
    x = 85,603.61

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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.