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Finding the Fourth Proportional to 334,031.80, 501,047.70 and 84,713.80

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Solution

The fourth proportional to 334,031.80, 501,047.70 and 84,713.80 is: 127,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,031.80 : 501,047.70 = 84,713.80 : x
  2. Step 2: Convert to fraction form
    334,031.80/501,047.70 = 84,713.80/x
  3. Step 3: Cross multiply
    334,031.80x = 501,047.70 × 84,713.80
  4. Step 4: Simplify right side
    334,031.80x = 42,445,654,648.26
  5. Step 5: Solve for x
    x = 42,445,654,648.26/334,031.80
  6. Step 6: Final answer
    x = 127,070.70

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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.