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Finding the Fourth Proportional to 265,616.70, 398,425.05 and 97,136.70

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Solution

The fourth proportional to 265,616.70, 398,425.05 and 97,136.70 is: 145,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,616.70 : 398,425.05 = 97,136.70 : x
  2. Step 2: Convert to fraction form
    265,616.70/398,425.05 = 97,136.70/x
  3. Step 3: Cross multiply
    265,616.70x = 398,425.05 × 97,136.70
  4. Step 4: Simplify right side
    265,616.70x = 38,701,694,554.34
  5. Step 5: Solve for x
    x = 38,701,694,554.34/265,616.70
  6. Step 6: Final answer
    x = 145,705.05

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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.