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Finding the Fourth Proportional to 153,659.65, 230,434.11 and 64,920.07

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Solution

The fourth proportional to 153,659.65, 230,434.11 and 64,920.07 is: 97,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,659.65 : 230,434.11 = 64,920.07 : x
  2. Step 2: Convert to fraction form
    153,659.65/230,434.11 = 64,920.07/x
  3. Step 3: Cross multiply
    153,659.65x = 230,434.11 × 64,920.07
  4. Step 4: Simplify right side
    153,659.65x = 14,959,798,469.94
  5. Step 5: Solve for x
    x = 14,959,798,469.94/153,659.65
  6. Step 6: Final answer
    x = 97,356.72

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1.5x scale

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.