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Finding the Fourth Proportional to 70,639.74, 97,508.42 and 46,774.10

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Solution

The fourth proportional to 70,639.74, 97,508.42 and 46,774.10 is: 64,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,639.74 : 97,508.42 = 46,774.10 : x
  2. Step 2: Convert to fraction form
    70,639.74/97,508.42 = 46,774.10/x
  3. Step 3: Cross multiply
    70,639.74x = 97,508.42 × 46,774.10
  4. Step 4: Simplify right side
    70,639.74x = 4,560,867,866.51
  5. Step 5: Solve for x
    x = 4,560,867,866.51/70,639.74
  6. Step 6: Final answer
    x = 64,565.18

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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.