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Finding the Fourth Proportional to 58,307.10, 87,460.65 and 46,643.10

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Solution

The fourth proportional to 58,307.10, 87,460.65 and 46,643.10 is: 69,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,307.10 : 87,460.65 = 46,643.10 : x
  2. Step 2: Convert to fraction form
    58,307.10/87,460.65 = 46,643.10/x
  3. Step 3: Cross multiply
    58,307.10x = 87,460.65 × 46,643.10
  4. Step 4: Simplify right side
    58,307.10x = 4,079,435,844.02
  5. Step 5: Solve for x
    x = 4,079,435,844.02/58,307.10
  6. Step 6: Final answer
    x = 69,964.65

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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.