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Finding the Fourth Proportional to 362,547.60, 543,821.40 and 125,865.60

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Solution

The fourth proportional to 362,547.60, 543,821.40 and 125,865.60 is: 188,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,547.60 : 543,821.40 = 125,865.60 : x
  2. Step 2: Convert to fraction form
    362,547.60/543,821.40 = 125,865.60/x
  3. Step 3: Cross multiply
    362,547.60x = 543,821.40 × 125,865.60
  4. Step 4: Simplify right side
    362,547.60x = 68,448,406,803.84
  5. Step 5: Solve for x
    x = 68,448,406,803.84/362,547.60
  6. Step 6: Final answer
    x = 188,798.40

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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.