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Finding the Fourth Proportional to 91,190.84, 125,864.35 and 53,477.24

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Solution

The fourth proportional to 91,190.84, 125,864.35 and 53,477.24 is: 73,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,190.84 : 125,864.35 = 53,477.24 : x
  2. Step 2: Convert to fraction form
    91,190.84/125,864.35 = 53,477.24/x
  3. Step 3: Cross multiply
    91,190.84x = 125,864.35 × 53,477.24
  4. Step 4: Simplify right side
    91,190.84x = 6,730,877,289.38
  5. Step 5: Solve for x
    x = 6,730,877,289.38/91,190.84
  6. Step 6: Final answer
    x = 73,810.90

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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.