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Finding the Fourth Proportional to 153,847.90, 230,715.48 and 65,108.32

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Solution

The fourth proportional to 153,847.90, 230,715.48 and 65,108.32 is: 97,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,847.90 : 230,715.48 = 65,108.32 : x
  2. Step 2: Convert to fraction form
    153,847.90/230,715.48 = 65,108.32/x
  3. Step 3: Cross multiply
    153,847.90x = 230,715.48 × 65,108.32
  4. Step 4: Simplify right side
    153,847.90x = 15,021,497,300.79
  5. Step 5: Solve for x
    x = 15,021,497,300.79/153,847.90
  6. Step 6: Final answer
    x = 97,638.62

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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.