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Finding the Fourth Proportional to 236,307.66, 354,346.38 and 78,482.82

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Solution

The fourth proportional to 236,307.66, 354,346.38 and 78,482.82 is: 117,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,307.66 : 354,346.38 = 78,482.82 : x
  2. Step 2: Convert to fraction form
    236,307.66/354,346.38 = 78,482.82/x
  3. Step 3: Cross multiply
    236,307.66x = 354,346.38 × 78,482.82
  4. Step 4: Simplify right side
    236,307.66x = 27,810,103,159.19
  5. Step 5: Solve for x
    x = 27,810,103,159.19/236,307.66
  6. Step 6: Final answer
    x = 117,686.00

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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.