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Finding the Fourth Proportional to 110,547.88, 152,580.70 and 70,253.78

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Solution

The fourth proportional to 110,547.88, 152,580.70 and 70,253.78 is: 96,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,547.88 : 152,580.70 = 70,253.78 : x
  2. Step 2: Convert to fraction form
    110,547.88/152,580.70 = 70,253.78/x
  3. Step 3: Cross multiply
    110,547.88x = 152,580.70 × 70,253.78
  4. Step 4: Simplify right side
    110,547.88x = 10,719,370,930.05
  5. Step 5: Solve for x
    x = 10,719,370,930.05/110,547.88
  6. Step 6: Final answer
    x = 96,965.87

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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.