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Finding the Fourth Proportional to 103,159.93, 154,783.65 and 56,358.13

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Solution

The fourth proportional to 103,159.93, 154,783.65 and 56,358.13 is: 84,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,159.93 : 154,783.65 = 56,358.13 : x
  2. Step 2: Convert to fraction form
    103,159.93/154,783.65 = 56,358.13/x
  3. Step 3: Cross multiply
    103,159.93x = 154,783.65 × 56,358.13
  4. Step 4: Simplify right side
    103,159.93x = 8,723,317,068.57
  5. Step 5: Solve for x
    x = 8,723,317,068.57/103,159.93
  6. Step 6: Final answer
    x = 84,561.10

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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.