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Finding the Fourth Proportional to 123,646.11, 185,482.80 and 39,386.67

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Solution

The fourth proportional to 123,646.11, 185,482.80 and 39,386.67 is: 59,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,646.11 : 185,482.80 = 39,386.67 : x
  2. Step 2: Convert to fraction form
    123,646.11/185,482.80 = 39,386.67/x
  3. Step 3: Cross multiply
    123,646.11x = 185,482.80 × 39,386.67
  4. Step 4: Simplify right side
    123,646.11x = 7,305,549,834.28
  5. Step 5: Solve for x
    x = 7,305,549,834.28/123,646.11
  6. Step 6: Final answer
    x = 59,084.35

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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.