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Finding the Fourth Proportional to 81,482.00, 112,599.38 and 61,303.82

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Solution

The fourth proportional to 81,482.00, 112,599.38 and 61,303.82 is: 84,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,482.00 : 112,599.38 = 61,303.82 : x
  2. Step 2: Convert to fraction form
    81,482.00/112,599.38 = 61,303.82/x
  3. Step 3: Cross multiply
    81,482.00x = 112,599.38 × 61,303.82
  4. Step 4: Simplify right side
    81,482.00x = 6,902,771,713.89
  5. Step 5: Solve for x
    x = 6,902,771,713.89/81,482.00
  6. Step 6: Final answer
    x = 84,715.30

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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.