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Finding the Fourth Proportional to 153,010.87, 211,180.05 and 127,476.74

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Solution

The fourth proportional to 153,010.87, 211,180.05 and 127,476.74 is: 175,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,010.87 : 211,180.05 = 127,476.74 : x
  2. Step 2: Convert to fraction form
    153,010.87/211,180.05 = 127,476.74/x
  3. Step 3: Cross multiply
    153,010.87x = 211,180.05 × 127,476.74
  4. Step 4: Simplify right side
    153,010.87x = 26,920,544,854.99
  5. Step 5: Solve for x
    x = 26,920,544,854.99/153,010.87
  6. Step 6: Final answer
    x = 175,938.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.