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Finding the Fourth Proportional to 98,795.70, 147,875.34 and 65,089.55

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Solution

The fourth proportional to 98,795.70, 147,875.34 and 65,089.55 is: 97,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,795.70 : 147,875.34 = 65,089.55 : x
  2. Step 2: Convert to fraction form
    98,795.70/147,875.34 = 65,089.55/x
  3. Step 3: Cross multiply
    98,795.70x = 147,875.34 × 65,089.55
  4. Step 4: Simplify right side
    98,795.70x = 9,625,139,336.70
  5. Step 5: Solve for x
    x = 9,625,139,336.70/98,795.70
  6. Step 6: Final answer
    x = 97,424.68

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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.