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Finding the Fourth Proportional to 56,270.79, 77,681.89 and 43,495.10

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Solution

The fourth proportional to 56,270.79, 77,681.89 and 43,495.10 is: 60,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,270.79 : 77,681.89 = 43,495.10 : x
  2. Step 2: Convert to fraction form
    56,270.79/77,681.89 = 43,495.10/x
  3. Step 3: Cross multiply
    56,270.79x = 77,681.89 × 43,495.10
  4. Step 4: Simplify right side
    56,270.79x = 3,378,781,531.01
  5. Step 5: Solve for x
    x = 3,378,781,531.01/56,270.79
  6. Step 6: Final answer
    x = 60,045.03

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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.