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Finding the Fourth Proportional to 72,364.90, 108,547.35 and 63,616.90

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Solution

The fourth proportional to 72,364.90, 108,547.35 and 63,616.90 is: 95,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,364.90 : 108,547.35 = 63,616.90 : x
  2. Step 2: Convert to fraction form
    72,364.90/108,547.35 = 63,616.90/x
  3. Step 3: Cross multiply
    72,364.90x = 108,547.35 × 63,616.90
  4. Step 4: Simplify right side
    72,364.90x = 6,905,445,910.22
  5. Step 5: Solve for x
    x = 6,905,445,910.22/72,364.90
  6. Step 6: Final answer
    x = 95,425.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.