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Finding the Fourth Proportional to 359,430.60, 539,145.90 and 110,112.60

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Solution

The fourth proportional to 359,430.60, 539,145.90 and 110,112.60 is: 165,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,430.60 : 539,145.90 = 110,112.60 : x
  2. Step 2: Convert to fraction form
    359,430.60/539,145.90 = 110,112.60/x
  3. Step 3: Cross multiply
    359,430.60x = 539,145.90 × 110,112.60
  4. Step 4: Simplify right side
    359,430.60x = 59,366,756,828.34
  5. Step 5: Solve for x
    x = 59,366,756,828.34/359,430.60
  6. Step 6: Final answer
    x = 165,168.90

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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.