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Finding the Fourth Proportional to 292,543.76, 438,974.40 and 124,158.80

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Solution

The fourth proportional to 292,543.76, 438,974.40 and 124,158.80 is: 186,305.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,543.76 : 438,974.40 = 124,158.80 : x
  2. Step 2: Convert to fraction form
    292,543.76/438,974.40 = 124,158.80/x
  3. Step 3: Cross multiply
    292,543.76x = 438,974.40 × 124,158.80
  4. Step 4: Simplify right side
    292,543.76x = 54,502,534,734.72
  5. Step 5: Solve for x
    x = 54,502,534,734.72/292,543.76
  6. Step 6: Final answer
    x = 186,305.58

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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.