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Finding the Fourth Proportional to 161,543.94, 222,925.41 and 89,921.58

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Solution

The fourth proportional to 161,543.94, 222,925.41 and 89,921.58 is: 124,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,543.94 : 222,925.41 = 89,921.58 : x
  2. Step 2: Convert to fraction form
    161,543.94/222,925.41 = 89,921.58/x
  3. Step 3: Cross multiply
    161,543.94x = 222,925.41 × 89,921.58
  4. Step 4: Simplify right side
    161,543.94x = 20,045,805,089.35
  5. Step 5: Solve for x
    x = 20,045,805,089.35/161,543.94
  6. Step 6: Final answer
    x = 124,088.87

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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.