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Finding the Fourth Proportional to 73,931.60, 110,897.40 and 61,465.70

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Solution

The fourth proportional to 73,931.60, 110,897.40 and 61,465.70 is: 92,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,931.60 : 110,897.40 = 61,465.70 : x
  2. Step 2: Convert to fraction form
    73,931.60/110,897.40 = 61,465.70/x
  3. Step 3: Cross multiply
    73,931.60x = 110,897.40 × 61,465.70
  4. Step 4: Simplify right side
    73,931.60x = 6,816,386,319.18
  5. Step 5: Solve for x
    x = 6,816,386,319.18/73,931.60
  6. Step 6: Final answer
    x = 92,198.55

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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.