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Finding the Fourth Proportional to 334,890.40, 502,335.60 and 98,240.80

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Solution

The fourth proportional to 334,890.40, 502,335.60 and 98,240.80 is: 147,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,890.40 : 502,335.60 = 98,240.80 : x
  2. Step 2: Convert to fraction form
    334,890.40/502,335.60 = 98,240.80/x
  3. Step 3: Cross multiply
    334,890.40x = 502,335.60 × 98,240.80
  4. Step 4: Simplify right side
    334,890.40x = 49,349,851,212.48
  5. Step 5: Solve for x
    x = 49,349,851,212.48/334,890.40
  6. Step 6: Final answer
    x = 147,361.20

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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.