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Finding the Fourth Proportional to 68,068.60, 101,957.10 and 56,404.60

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Solution

The fourth proportional to 68,068.60, 101,957.10 and 56,404.60 is: 84,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,068.60 : 101,957.10 = 56,404.60 : x
  2. Step 2: Convert to fraction form
    68,068.60/101,957.10 = 56,404.60/x
  3. Step 3: Cross multiply
    68,068.60x = 101,957.10 × 56,404.60
  4. Step 4: Simplify right side
    68,068.60x = 5,750,849,442.66
  5. Step 5: Solve for x
    x = 5,750,849,442.66/68,068.60
  6. Step 6: Final answer
    x = 84,486.08

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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.