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Finding the Fourth Proportional to 104,166.83, 143,748.51 and 56,419.76

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Solution

The fourth proportional to 104,166.83, 143,748.51 and 56,419.76 is: 77,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,166.83 : 143,748.51 = 56,419.76 : x
  2. Step 2: Convert to fraction form
    104,166.83/143,748.51 = 56,419.76/x
  3. Step 3: Cross multiply
    104,166.83x = 143,748.51 × 56,419.76
  4. Step 4: Simplify right side
    104,166.83x = 8,110,255,715.82
  5. Step 5: Solve for x
    x = 8,110,255,715.82/104,166.83
  6. Step 6: Final answer
    x = 77,858.34

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1.5x scale

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.