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Finding the Fourth Proportional to 141,806.30, 212,709.45 and 124,310.30

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Solution

The fourth proportional to 141,806.30, 212,709.45 and 124,310.30 is: 186,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,806.30 : 212,709.45 = 124,310.30 : x
  2. Step 2: Convert to fraction form
    141,806.30/212,709.45 = 124,310.30/x
  3. Step 3: Cross multiply
    141,806.30x = 212,709.45 × 124,310.30
  4. Step 4: Simplify right side
    141,806.30x = 26,441,975,542.34
  5. Step 5: Solve for x
    x = 26,441,975,542.34/141,806.30
  6. Step 6: Final answer
    x = 186,465.45

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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.