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Finding the Fourth Proportional to 581,512.64, 872,266.48 and 155,047.60

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Solution

The fourth proportional to 581,512.64, 872,266.48 and 155,047.60 is: 232,570.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,512.64 : 872,266.48 = 155,047.60 : x
  2. Step 2: Convert to fraction form
    581,512.64/872,266.48 = 155,047.60/x
  3. Step 3: Cross multiply
    581,512.64x = 872,266.48 × 155,047.60
  4. Step 4: Simplify right side
    581,512.64x = 135,242,824,284.45
  5. Step 5: Solve for x
    x = 135,242,824,284.45/581,512.64
  6. Step 6: Final answer
    x = 232,570.74

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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.