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Finding the Fourth Proportional to 400,045.60, 600,068.40 and 163,266.40

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Solution

The fourth proportional to 400,045.60, 600,068.40 and 163,266.40 is: 244,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,045.60 : 600,068.40 = 163,266.40 : x
  2. Step 2: Convert to fraction form
    400,045.60/600,068.40 = 163,266.40/x
  3. Step 3: Cross multiply
    400,045.60x = 600,068.40 × 163,266.40
  4. Step 4: Simplify right side
    400,045.60x = 97,971,007,421.76
  5. Step 5: Solve for x
    x = 97,971,007,421.76/400,045.60
  6. Step 6: Final answer
    x = 244,899.60

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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.