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Finding the Fourth Proportional to 326,158.00, 489,307.32 and 98,434.59

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Solution

The fourth proportional to 326,158.00, 489,307.32 and 98,434.59 is: 147,673.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,158.00 : 489,307.32 = 98,434.59 : x
  2. Step 2: Convert to fraction form
    326,158.00/489,307.32 = 98,434.59/x
  3. Step 3: Cross multiply
    326,158.00x = 489,307.32 × 98,434.59
  4. Step 4: Simplify right side
    326,158.00x = 48,164,765,428.20
  5. Step 5: Solve for x
    x = 48,164,765,428.20/326,158.00
  6. Step 6: Final answer
    x = 147,673.11

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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.