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Finding the Fourth Proportional to 98,325.60, 147,459.60 and 45,722.40

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Solution

The fourth proportional to 98,325.60, 147,459.60 and 45,722.40 is: 68,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,325.60 : 147,459.60 = 45,722.40 : x
  2. Step 2: Convert to fraction form
    98,325.60/147,459.60 = 45,722.40/x
  3. Step 3: Cross multiply
    98,325.60x = 147,459.60 × 45,722.40
  4. Step 4: Simplify right side
    98,325.60x = 6,742,206,815.04
  5. Step 5: Solve for x
    x = 6,742,206,815.04/98,325.60
  6. Step 6: Final answer
    x = 68,570.21

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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.