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Finding the Fourth Proportional to 359,580, 539,365.60 and 93,316.80

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Solution

The fourth proportional to 359,580, 539,365.60 and 93,316.80 is: 139,974.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,580 : 539,365.60 = 93,316.80 : x
  2. Step 2: Convert to fraction form
    359,580/539,365.60 = 93,316.80/x
  3. Step 3: Cross multiply
    359,580x = 539,365.60 × 93,316.80
  4. Step 4: Simplify right side
    359,580x = 50,331,871,822.08
  5. Step 5: Solve for x
    x = 50,331,871,822.08/359,580
  6. Step 6: Final answer
    x = 139,974.06

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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.