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Finding the Fourth Proportional to 160,798.60, 221,887.38 and 89,178.40

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Solution

The fourth proportional to 160,798.60, 221,887.38 and 89,178.40 is: 123,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,798.60 : 221,887.38 = 89,178.40 : x
  2. Step 2: Convert to fraction form
    160,798.60/221,887.38 = 89,178.40/x
  3. Step 3: Cross multiply
    160,798.60x = 221,887.38 × 89,178.40
  4. Step 4: Simplify right side
    160,798.60x = 19,787,561,528.59
  5. Step 5: Solve for x
    x = 19,787,561,528.59/160,798.60
  6. Step 6: Final answer
    x = 123,058.05

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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.