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Finding the Fourth Proportional to 189,068.58, 260,916.39 and 104,188.68

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Solution

The fourth proportional to 189,068.58, 260,916.39 and 104,188.68 is: 143,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,068.58 : 260,916.39 = 104,188.68 : x
  2. Step 2: Convert to fraction form
    189,068.58/260,916.39 = 104,188.68/x
  3. Step 3: Cross multiply
    189,068.58x = 260,916.39 × 104,188.68
  4. Step 4: Simplify right side
    189,068.58x = 27,184,534,264.47
  5. Step 5: Solve for x
    x = 27,184,534,264.47/189,068.58
  6. Step 6: Final answer
    x = 143,781.34

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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.