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Finding the Fourth Proportional to 207,064.80, 310,670.08 and 101,957.60

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Solution

The fourth proportional to 207,064.80, 310,670.08 and 101,957.60 is: 152,972.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,064.80 : 310,670.08 = 101,957.60 : x
  2. Step 2: Convert to fraction form
    207,064.80/310,670.08 = 101,957.60/x
  3. Step 3: Cross multiply
    207,064.80x = 310,670.08 × 101,957.60
  4. Step 4: Simplify right side
    207,064.80x = 31,675,175,748.61
  5. Step 5: Solve for x
    x = 31,675,175,748.61/207,064.80
  6. Step 6: Final answer
    x = 152,972.29

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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.