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Finding the Fourth Proportional to 97,240.60, 145,688.10 and 83,416.60

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Solution

The fourth proportional to 97,240.60, 145,688.10 and 83,416.60 is: 124,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,240.60 : 145,688.10 = 83,416.60 : x
  2. Step 2: Convert to fraction form
    97,240.60/145,688.10 = 83,416.60/x
  3. Step 3: Cross multiply
    97,240.60x = 145,688.10 × 83,416.60
  4. Step 4: Simplify right side
    97,240.60x = 12,152,805,962.46
  5. Step 5: Solve for x
    x = 12,152,805,962.46/97,240.60
  6. Step 6: Final answer
    x = 124,976.67

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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.