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Finding the Fourth Proportional to 506,778.58, 760,141.21 and 127,699.03

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Solution

The fourth proportional to 506,778.58, 760,141.21 and 127,699.03 is: 191,541.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,778.58 : 760,141.21 = 127,699.03 : x
  2. Step 2: Convert to fraction form
    506,778.58/760,141.21 = 127,699.03/x
  3. Step 3: Cross multiply
    506,778.58x = 760,141.21 × 127,699.03
  4. Step 4: Simplify right side
    506,778.58x = 97,069,296,050.39
  5. Step 5: Solve for x
    x = 97,069,296,050.39/506,778.58
  6. Step 6: Final answer
    x = 191,541.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.