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Finding the Fourth Proportional to 253,927.61, 380,887.62 and 61,802.70

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Solution

The fourth proportional to 253,927.61, 380,887.62 and 61,802.70 is: 92,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,927.61 : 380,887.62 = 61,802.70 : x
  2. Step 2: Convert to fraction form
    253,927.61/380,887.62 = 61,802.70/x
  3. Step 3: Cross multiply
    253,927.61x = 380,887.62 × 61,802.70
  4. Step 4: Simplify right side
    253,927.61x = 23,539,881,652.49
  5. Step 5: Solve for x
    x = 23,539,881,652.49/253,927.61
  6. Step 6: Final answer
    x = 92,703.12

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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.