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Finding the Fourth Proportional to 243,373.40, 365,060.10 and 172,514.60

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Solution

The fourth proportional to 243,373.40, 365,060.10 and 172,514.60 is: 258,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,373.40 : 365,060.10 = 172,514.60 : x
  2. Step 2: Convert to fraction form
    243,373.40/365,060.10 = 172,514.60/x
  3. Step 3: Cross multiply
    243,373.40x = 365,060.10 × 172,514.60
  4. Step 4: Simplify right side
    243,373.40x = 62,978,197,127.46
  5. Step 5: Solve for x
    x = 62,978,197,127.46/243,373.40
  6. Step 6: Final answer
    x = 258,771.90

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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.