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Finding the Fourth Proportional to 235,801.02, 353,488.20 and 86,006.22

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Solution

The fourth proportional to 235,801.02, 353,488.20 and 86,006.22 is: 128,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,801.02 : 353,488.20 = 86,006.22 : x
  2. Step 2: Convert to fraction form
    235,801.02/353,488.20 = 86,006.22/x
  3. Step 3: Cross multiply
    235,801.02x = 353,488.20 × 86,006.22
  4. Step 4: Simplify right side
    235,801.02x = 30,402,183,896.60
  5. Step 5: Solve for x
    x = 30,402,183,896.60/235,801.02
  6. Step 6: Final answer
    x = 128,931.52

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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.