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Finding the Fourth Proportional to 70,646.38, 106,005.93 and 39,050.57

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Solution

The fourth proportional to 70,646.38, 106,005.93 and 39,050.57 is: 58,595.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,646.38 : 106,005.93 = 39,050.57 : x
  2. Step 2: Convert to fraction form
    70,646.38/106,005.93 = 39,050.57/x
  3. Step 3: Cross multiply
    70,646.38x = 106,005.93 × 39,050.57
  4. Step 4: Simplify right side
    70,646.38x = 4,139,592,254.89
  5. Step 5: Solve for x
    x = 4,139,592,254.89/70,646.38
  6. Step 6: Final answer
    x = 58,595.96

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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.