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Finding the Fourth Proportional to 158,603.53, 237,903.67 and 53,421.79

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Solution

The fourth proportional to 158,603.53, 237,903.67 and 53,421.79 is: 80,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,603.53 : 237,903.67 = 53,421.79 : x
  2. Step 2: Convert to fraction form
    158,603.53/237,903.67 = 53,421.79/x
  3. Step 3: Cross multiply
    158,603.53x = 237,903.67 × 53,421.79
  4. Step 4: Simplify right side
    158,603.53x = 12,709,238,575.90
  5. Step 5: Solve for x
    x = 12,709,238,575.90/158,603.53
  6. Step 6: Final answer
    x = 80,132.13

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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.