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Finding the Fourth Proportional to 372,953.60, 559,430.40 and 106,722.80

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Solution

The fourth proportional to 372,953.60, 559,430.40 and 106,722.80 is: 160,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,953.60 : 559,430.40 = 106,722.80 : x
  2. Step 2: Convert to fraction form
    372,953.60/559,430.40 = 106,722.80/x
  3. Step 3: Cross multiply
    372,953.60x = 559,430.40 × 106,722.80
  4. Step 4: Simplify right side
    372,953.60x = 59,703,978,693.12
  5. Step 5: Solve for x
    x = 59,703,978,693.12/372,953.60
  6. Step 6: Final answer
    x = 160,084.20

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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.