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Finding the Fourth Proportional to 153,913.40, 230,870.10 and 94,864.40

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Solution

The fourth proportional to 153,913.40, 230,870.10 and 94,864.40 is: 142,296.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,913.40 : 230,870.10 = 94,864.40 : x
  2. Step 2: Convert to fraction form
    153,913.40/230,870.10 = 94,864.40/x
  3. Step 3: Cross multiply
    153,913.40x = 230,870.10 × 94,864.40
  4. Step 4: Simplify right side
    153,913.40x = 21,901,353,514.44
  5. Step 5: Solve for x
    x = 21,901,353,514.44/153,913.40
  6. Step 6: Final answer
    x = 142,296.60

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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.