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Finding the Fourth Proportional to 201,438.90, 302,158.35 and 148,950.90

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Solution

The fourth proportional to 201,438.90, 302,158.35 and 148,950.90 is: 223,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,438.90 : 302,158.35 = 148,950.90 : x
  2. Step 2: Convert to fraction form
    201,438.90/302,158.35 = 148,950.90/x
  3. Step 3: Cross multiply
    201,438.90x = 302,158.35 × 148,950.90
  4. Step 4: Simplify right side
    201,438.90x = 45,006,758,175.02
  5. Step 5: Solve for x
    x = 45,006,758,175.02/201,438.90
  6. Step 6: Final answer
    x = 223,426.35

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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.