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Finding the Fourth Proportional to 61,810.60, 92,196.28 and 56,134.65

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Solution

The fourth proportional to 61,810.60, 92,196.28 and 56,134.65 is: 83,730.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,810.60 : 92,196.28 = 56,134.65 : x
  2. Step 2: Convert to fraction form
    61,810.60/92,196.28 = 56,134.65/x
  3. Step 3: Cross multiply
    61,810.60x = 92,196.28 × 56,134.65
  4. Step 4: Simplify right side
    61,810.60x = 5,175,405,909.10
  5. Step 5: Solve for x
    x = 5,175,405,909.10/61,810.60
  6. Step 6: Final answer
    x = 83,730.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.