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Finding the Fourth Proportional to 292,159.48, 438,195.12 and 92,453.80

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Solution

The fourth proportional to 292,159.48, 438,195.12 and 92,453.80 is: 138,666.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,159.48 : 438,195.12 = 92,453.80 : x
  2. Step 2: Convert to fraction form
    292,159.48/438,195.12 = 92,453.80/x
  3. Step 3: Cross multiply
    292,159.48x = 438,195.12 × 92,453.80
  4. Step 4: Simplify right side
    292,159.48x = 40,512,803,985.46
  5. Step 5: Solve for x
    x = 40,512,803,985.46/292,159.48
  6. Step 6: Final answer
    x = 138,666.74

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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.