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Finding the Fourth Proportional to 125,276.63, 187,911.29 and 46,389.11

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Solution

The fourth proportional to 125,276.63, 187,911.29 and 46,389.11 is: 69,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,276.63 : 187,911.29 = 46,389.11 : x
  2. Step 2: Convert to fraction form
    125,276.63/187,911.29 = 46,389.11/x
  3. Step 3: Cross multiply
    125,276.63x = 187,911.29 × 46,389.11
  4. Step 4: Simplify right side
    125,276.63x = 8,717,036,678.47
  5. Step 5: Solve for x
    x = 8,717,036,678.47/125,276.63
  6. Step 6: Final answer
    x = 69,582.31

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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.