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Finding the Fourth Proportional to 98,148.60, 146,931.30 and 98,148.60

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Solution

The fourth proportional to 98,148.60, 146,931.30 and 98,148.60 is: 146,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,148.60 : 146,931.30 = 98,148.60 : x
  2. Step 2: Convert to fraction form
    98,148.60/146,931.30 = 98,148.60/x
  3. Step 3: Cross multiply
    98,148.60x = 146,931.30 × 98,148.60
  4. Step 4: Simplify right side
    98,148.60x = 14,421,101,391.18
  5. Step 5: Solve for x
    x = 14,421,101,391.18/98,148.60
  6. Step 6: Final answer
    x = 146,931.30

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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.