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Finding the Fourth Proportional to 94,151.72, 129,928.86 and 51,130.82

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Solution

The fourth proportional to 94,151.72, 129,928.86 and 51,130.82 is: 70,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,151.72 : 129,928.86 = 51,130.82 : x
  2. Step 2: Convert to fraction form
    94,151.72/129,928.86 = 51,130.82/x
  3. Step 3: Cross multiply
    94,151.72x = 129,928.86 × 51,130.82
  4. Step 4: Simplify right side
    94,151.72x = 6,643,369,153.47
  5. Step 5: Solve for x
    x = 6,643,369,153.47/94,151.72
  6. Step 6: Final answer
    x = 70,560.25

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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.