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Finding the Fourth Proportional to 114,967.70, 158,660.61 and 64,666.70

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Solution

The fourth proportional to 114,967.70, 158,660.61 and 64,666.70 is: 89,242.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,967.70 : 158,660.61 = 64,666.70 : x
  2. Step 2: Convert to fraction form
    114,967.70/158,660.61 = 64,666.70/x
  3. Step 3: Cross multiply
    114,967.70x = 158,660.61 × 64,666.70
  4. Step 4: Simplify right side
    114,967.70x = 10,260,058,068.69
  5. Step 5: Solve for x
    x = 10,260,058,068.69/114,967.70
  6. Step 6: Final answer
    x = 89,242.96

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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.