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Finding the Fourth Proportional to 235,526.52, 353,384.16 and 85,777.24

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Solution

The fourth proportional to 235,526.52, 353,384.16 and 85,777.24 is: 128,700.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,526.52 : 353,384.16 = 85,777.24 : x
  2. Step 2: Convert to fraction form
    235,526.52/353,384.16 = 85,777.24/x
  3. Step 3: Cross multiply
    235,526.52x = 353,384.16 × 85,777.24
  4. Step 4: Simplify right side
    235,526.52x = 30,312,317,904.52
  5. Step 5: Solve for x
    x = 30,312,317,904.52/235,526.52
  6. Step 6: Final answer
    x = 128,700.23

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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.