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Finding the Fourth Proportional to 357,032.08, 535,551.59 and 90,792.60

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Solution

The fourth proportional to 357,032.08, 535,551.59 and 90,792.60 is: 136,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,032.08 : 535,551.59 = 90,792.60 : x
  2. Step 2: Convert to fraction form
    357,032.08/535,551.59 = 90,792.60/x
  3. Step 3: Cross multiply
    357,032.08x = 535,551.59 × 90,792.60
  4. Step 4: Simplify right side
    357,032.08x = 48,624,121,290.23
  5. Step 5: Solve for x
    x = 48,624,121,290.23/357,032.08
  6. Step 6: Final answer
    x = 136,189.78

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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.