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Finding the Fourth Proportional to 153,600, 230,490.72 and 64,847.76

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Solution

The fourth proportional to 153,600, 230,490.72 and 64,847.76 is: 97,309.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,600 : 230,490.72 = 64,847.76 : x
  2. Step 2: Convert to fraction form
    153,600/230,490.72 = 64,847.76/x
  3. Step 3: Cross multiply
    153,600x = 230,490.72 × 64,847.76
  4. Step 4: Simplify right side
    153,600x = 14,946,806,892.79
  5. Step 5: Solve for x
    x = 14,946,806,892.79/153,600
  6. Step 6: Final answer
    x = 97,309.94

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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.