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Finding the Fourth Proportional to 77,349.72, 106,741.76 and 43,363.74

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Solution

The fourth proportional to 77,349.72, 106,741.76 and 43,363.74 is: 59,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,349.72 : 106,741.76 = 43,363.74 : x
  2. Step 2: Convert to fraction form
    77,349.72/106,741.76 = 43,363.74/x
  3. Step 3: Cross multiply
    77,349.72x = 106,741.76 × 43,363.74
  4. Step 4: Simplify right side
    77,349.72x = 4,628,721,710.96
  5. Step 5: Solve for x
    x = 4,628,721,710.96/77,349.72
  6. Step 6: Final answer
    x = 59,841.48

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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.