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Finding the Fourth Proportional to 292,635.12, 438,866.10 and 124,153.32

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Solution

The fourth proportional to 292,635.12, 438,866.10 and 124,153.32 is: 186,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,635.12 : 438,866.10 = 124,153.32 : x
  2. Step 2: Convert to fraction form
    292,635.12/438,866.10 = 124,153.32/x
  3. Step 3: Cross multiply
    292,635.12x = 438,866.10 × 124,153.32
  4. Step 4: Simplify right side
    292,635.12x = 54,486,683,350.45
  5. Step 5: Solve for x
    x = 54,486,683,350.45/292,635.12
  6. Step 6: Final answer
    x = 186,193.25

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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.