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Finding the Fourth Proportional to 162,889.92, 224,765.28 and 91,264.32

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Solution

The fourth proportional to 162,889.92, 224,765.28 and 91,264.32 is: 125,931.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,889.92 : 224,765.28 = 91,264.32 : x
  2. Step 2: Convert to fraction form
    162,889.92/224,765.28 = 91,264.32/x
  3. Step 3: Cross multiply
    162,889.92x = 224,765.28 × 91,264.32
  4. Step 4: Simplify right side
    162,889.92x = 20,513,050,438.81
  5. Step 5: Solve for x
    x = 20,513,050,438.81/162,889.92
  6. Step 6: Final answer
    x = 125,931.98

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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.