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Finding the Fourth Proportional to 76,060, 104,967.66 and 42,526

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Solution

The fourth proportional to 76,060, 104,967.66 and 42,526 is: 58,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,060 : 104,967.66 = 42,526 : x
  2. Step 2: Convert to fraction form
    76,060/104,967.66 = 42,526/x
  3. Step 3: Cross multiply
    76,060x = 104,967.66 × 42,526
  4. Step 4: Simplify right side
    76,060x = 4,463,854,709.16
  5. Step 5: Solve for x
    x = 4,463,854,709.16/76,060
  6. Step 6: Final answer
    x = 58,688.60

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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.