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Finding the Fourth Proportional to 153,527.66, 211,865.34 and 85,543.17

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Solution

The fourth proportional to 153,527.66, 211,865.34 and 85,543.17 is: 118,048.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,527.66 : 211,865.34 = 85,543.17 : x
  2. Step 2: Convert to fraction form
    153,527.66/211,865.34 = 85,543.17/x
  3. Step 3: Cross multiply
    153,527.66x = 211,865.34 × 85,543.17
  4. Step 4: Simplify right side
    153,527.66x = 18,123,632,796.73
  5. Step 5: Solve for x
    x = 18,123,632,796.73/153,527.66
  6. Step 6: Final answer
    x = 118,048.00

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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.