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Finding the Fourth Proportional to 92,312.26, 127,390.73 and 49,870.69

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Solution

The fourth proportional to 92,312.26, 127,390.73 and 49,870.69 is: 68,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,312.26 : 127,390.73 = 49,870.69 : x
  2. Step 2: Convert to fraction form
    92,312.26/127,390.73 = 49,870.69/x
  3. Step 3: Cross multiply
    92,312.26x = 127,390.73 × 49,870.69
  4. Step 4: Simplify right side
    92,312.26x = 6,353,063,036.87
  5. Step 5: Solve for x
    x = 6,353,063,036.87/92,312.26
  6. Step 6: Final answer
    x = 68,821.45

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1.5x scale

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.