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Finding the Fourth Proportional to 157,632.94, 217,534.08 and 86,014.45

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Solution

The fourth proportional to 157,632.94, 217,534.08 and 86,014.45 is: 118,700.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,632.94 : 217,534.08 = 86,014.45 : x
  2. Step 2: Convert to fraction form
    157,632.94/217,534.08 = 86,014.45/x
  3. Step 3: Cross multiply
    157,632.94x = 217,534.08 × 86,014.45
  4. Step 4: Simplify right side
    157,632.94x = 18,711,074,247.46
  5. Step 5: Solve for x
    x = 18,711,074,247.46/157,632.94
  6. Step 6: Final answer
    x = 118,700.28

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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.