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Finding the Fourth Proportional to 111,943, 154,482.42 and 61,643.08

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Solution

The fourth proportional to 111,943, 154,482.42 and 61,643.08 is: 85,068.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,943 : 154,482.42 = 61,643.08 : x
  2. Step 2: Convert to fraction form
    111,943/154,482.42 = 61,643.08/x
  3. Step 3: Cross multiply
    111,943x = 154,482.42 × 61,643.08
  4. Step 4: Simplify right side
    111,943x = 9,522,772,174.65
  5. Step 5: Solve for x
    x = 9,522,772,174.65/111,943
  6. Step 6: Final answer
    x = 85,068.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.