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Finding the Fourth Proportional to 357,000.80, 535,501.20 and 157,218.35

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Solution

The fourth proportional to 357,000.80, 535,501.20 and 157,218.35 is: 235,827.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,000.80 : 535,501.20 = 157,218.35 : x
  2. Step 2: Convert to fraction form
    357,000.80/535,501.20 = 157,218.35/x
  3. Step 3: Cross multiply
    357,000.80x = 535,501.20 × 157,218.35
  4. Step 4: Simplify right side
    357,000.80x = 84,190,615,087.02
  5. Step 5: Solve for x
    x = 84,190,615,087.02/357,000.80
  6. Step 6: Final answer
    x = 235,827.53

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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.