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Finding the Fourth Proportional to 104,054.52, 143,595.62 and 56,307.87

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Solution

The fourth proportional to 104,054.52, 143,595.62 and 56,307.87 is: 77,705.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,054.52 : 143,595.62 = 56,307.87 : x
  2. Step 2: Convert to fraction form
    104,054.52/143,595.62 = 56,307.87/x
  3. Step 3: Cross multiply
    104,054.52x = 143,595.62 × 56,307.87
  4. Step 4: Simplify right side
    104,054.52x = 8,085,563,503.53
  5. Step 5: Solve for x
    x = 8,085,563,503.53/104,054.52
  6. Step 6: Final answer
    x = 77,705.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.