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Finding the Fourth Proportional to 163,637.70, 245,456.55 and 156,725.70

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Solution

The fourth proportional to 163,637.70, 245,456.55 and 156,725.70 is: 235,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,637.70 : 245,456.55 = 156,725.70 : x
  2. Step 2: Convert to fraction form
    163,637.70/245,456.55 = 156,725.70/x
  3. Step 3: Cross multiply
    163,637.70x = 245,456.55 × 156,725.70
  4. Step 4: Simplify right side
    163,637.70x = 38,469,349,618.34
  5. Step 5: Solve for x
    x = 38,469,349,618.34/163,637.70
  6. Step 6: Final answer
    x = 235,088.55

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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.