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Finding the Fourth Proportional to 92,860.67, 139,320.90 and 42,277.79

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Solution

The fourth proportional to 92,860.67, 139,320.90 and 42,277.79 is: 63,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,860.67 : 139,320.90 = 42,277.79 : x
  2. Step 2: Convert to fraction form
    92,860.67/139,320.90 = 42,277.79/x
  3. Step 3: Cross multiply
    92,860.67x = 139,320.90 × 42,277.79
  4. Step 4: Simplify right side
    92,860.67x = 5,890,179,752.81
  5. Step 5: Solve for x
    x = 5,890,179,752.81/92,860.67
  6. Step 6: Final answer
    x = 63,430.30

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1.5x scale

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.