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Finding the Fourth Proportional to 103,484.40, 155,226.60 and 97,360.80

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Solution

The fourth proportional to 103,484.40, 155,226.60 and 97,360.80 is: 146,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,484.40 : 155,226.60 = 97,360.80 : x
  2. Step 2: Convert to fraction form
    103,484.40/155,226.60 = 97,360.80/x
  3. Step 3: Cross multiply
    103,484.40x = 155,226.60 × 97,360.80
  4. Step 4: Simplify right side
    103,484.40x = 15,112,985,957.28
  5. Step 5: Solve for x
    x = 15,112,985,957.28/103,484.40
  6. Step 6: Final answer
    x = 146,041.20

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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.