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Finding the Fourth Proportional to 152,068.40, 228,102.60 and 68,962.40

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Solution

The fourth proportional to 152,068.40, 228,102.60 and 68,962.40 is: 103,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,068.40 : 228,102.60 = 68,962.40 : x
  2. Step 2: Convert to fraction form
    152,068.40/228,102.60 = 68,962.40/x
  3. Step 3: Cross multiply
    152,068.40x = 228,102.60 × 68,962.40
  4. Step 4: Simplify right side
    152,068.40x = 15,730,502,742.24
  5. Step 5: Solve for x
    x = 15,730,502,742.24/152,068.40
  6. Step 6: Final answer
    x = 103,443.60

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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.