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Finding the Fourth Proportional to 108,031.40, 162,047.10 and 94,909.40

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Solution

The fourth proportional to 108,031.40, 162,047.10 and 94,909.40 is: 142,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,031.40 : 162,047.10 = 94,909.40 : x
  2. Step 2: Convert to fraction form
    108,031.40/162,047.10 = 94,909.40/x
  3. Step 3: Cross multiply
    108,031.40x = 162,047.10 × 94,909.40
  4. Step 4: Simplify right side
    108,031.40x = 15,379,793,032.74
  5. Step 5: Solve for x
    x = 15,379,793,032.74/108,031.40
  6. Step 6: Final answer
    x = 142,364.10

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1.5x scale

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.