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Finding the Fourth Proportional to 616,110.60, 924,165.90 and 172,878.60

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Solution

The fourth proportional to 616,110.60, 924,165.90 and 172,878.60 is: 259,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,110.60 : 924,165.90 = 172,878.60 : x
  2. Step 2: Convert to fraction form
    616,110.60/924,165.90 = 172,878.60/x
  3. Step 3: Cross multiply
    616,110.60x = 924,165.90 × 172,878.60
  4. Step 4: Simplify right side
    616,110.60x = 159,768,506,959.74
  5. Step 5: Solve for x
    x = 159,768,506,959.74/616,110.60
  6. Step 6: Final answer
    x = 259,317.90

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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.