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Finding the Fourth Proportional to 58,870.74, 88,309.16 and 19,430.93

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Solution

The fourth proportional to 58,870.74, 88,309.16 and 19,430.93 is: 29,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,870.74 : 88,309.16 = 19,430.93 : x
  2. Step 2: Convert to fraction form
    58,870.74/88,309.16 = 19,430.93/x
  3. Step 3: Cross multiply
    58,870.74x = 88,309.16 × 19,430.93
  4. Step 4: Simplify right side
    58,870.74x = 1,715,928,567.62
  5. Step 5: Solve for x
    x = 1,715,928,567.62/58,870.74
  6. Step 6: Final answer
    x = 29,147.39

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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.