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Finding the Fourth Proportional to 70,595.52, 97,443.68 and 45,445

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Solution

The fourth proportional to 70,595.52, 97,443.68 and 45,445 is: 62,728.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,595.52 : 97,443.68 = 45,445 : x
  2. Step 2: Convert to fraction form
    70,595.52/97,443.68 = 45,445/x
  3. Step 3: Cross multiply
    70,595.52x = 97,443.68 × 45,445
  4. Step 4: Simplify right side
    70,595.52x = 4,428,328,037.60
  5. Step 5: Solve for x
    x = 4,428,328,037.60/70,595.52
  6. Step 6: Final answer
    x = 62,728.17

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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.