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Finding the Fourth Proportional to 70,030.30, 104,957.85 and 34,979.74

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Solution

The fourth proportional to 70,030.30, 104,957.85 and 34,979.74 is: 52,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,030.30 : 104,957.85 = 34,979.74 : x
  2. Step 2: Convert to fraction form
    70,030.30/104,957.85 = 34,979.74/x
  3. Step 3: Cross multiply
    70,030.30x = 104,957.85 × 34,979.74
  4. Step 4: Simplify right side
    70,030.30x = 3,671,398,303.96
  5. Step 5: Solve for x
    x = 3,671,398,303.96/70,030.30
  6. Step 6: Final answer
    x = 52,425.85

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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.