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Finding the Fourth Proportional to 103,457.44, 155,263.44 and 70,098.40

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Solution

The fourth proportional to 103,457.44, 155,263.44 and 70,098.40 is: 105,199.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,457.44 : 155,263.44 = 70,098.40 : x
  2. Step 2: Convert to fraction form
    103,457.44/155,263.44 = 70,098.40/x
  3. Step 3: Cross multiply
    103,457.44x = 155,263.44 × 70,098.40
  4. Step 4: Simplify right side
    103,457.44x = 10,883,718,722.50
  5. Step 5: Solve for x
    x = 10,883,718,722.50/103,457.44
  6. Step 6: Final answer
    x = 105,199.96

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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.