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Finding the Fourth Proportional to 127,730.10, 191,595.15 and 127,730.10

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Solution

The fourth proportional to 127,730.10, 191,595.15 and 127,730.10 is: 191,595.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,730.10 : 191,595.15 = 127,730.10 : x
  2. Step 2: Convert to fraction form
    127,730.10/191,595.15 = 127,730.10/x
  3. Step 3: Cross multiply
    127,730.10x = 191,595.15 × 127,730.10
  4. Step 4: Simplify right side
    127,730.10x = 24,472,467,669.02
  5. Step 5: Solve for x
    x = 24,472,467,669.02/127,730.10
  6. Step 6: Final answer
    x = 191,595.15

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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.