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Finding the Fourth Proportional to 247,638.16, 341,731.08 and 134,458.32

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Solution

The fourth proportional to 247,638.16, 341,731.08 and 134,458.32 is: 185,547.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,638.16 : 341,731.08 = 134,458.32 : x
  2. Step 2: Convert to fraction form
    247,638.16/341,731.08 = 134,458.32/x
  3. Step 3: Cross multiply
    247,638.16x = 341,731.08 × 134,458.32
  4. Step 4: Simplify right side
    247,638.16x = 45,948,586,908.59
  5. Step 5: Solve for x
    x = 45,948,586,908.59/247,638.16
  6. Step 6: Final answer
    x = 185,547.28

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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.