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Finding the Fourth Proportional to 94,502.70, 130,420.80 and 52,061.40

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Solution

The fourth proportional to 94,502.70, 130,420.80 and 52,061.40 is: 71,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,502.70 : 130,420.80 = 52,061.40 : x
  2. Step 2: Convert to fraction form
    94,502.70/130,420.80 = 52,061.40/x
  3. Step 3: Cross multiply
    94,502.70x = 130,420.80 × 52,061.40
  4. Step 4: Simplify right side
    94,502.70x = 6,789,889,437.12
  5. Step 5: Solve for x
    x = 6,789,889,437.12/94,502.70
  6. Step 6: Final answer
    x = 71,848.63

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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.