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Finding the Fourth Proportional to 356,532.60, 534,539.70 and 146,062.20

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Solution

The fourth proportional to 356,532.60, 534,539.70 and 146,062.20 is: 218,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,532.60 : 534,539.70 = 146,062.20 : x
  2. Step 2: Convert to fraction form
    356,532.60/534,539.70 = 146,062.20/x
  3. Step 3: Cross multiply
    356,532.60x = 534,539.70 × 146,062.20
  4. Step 4: Simplify right side
    356,532.60x = 78,076,044,569.34
  5. Step 5: Solve for x
    x = 78,076,044,569.34/356,532.60
  6. Step 6: Final answer
    x = 218,987.11

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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.