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Finding the Fourth Proportional to 125,210.79, 187,816.50 and 36,466.47

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Solution

The fourth proportional to 125,210.79, 187,816.50 and 36,466.47 is: 54,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,210.79 : 187,816.50 = 36,466.47 : x
  2. Step 2: Convert to fraction form
    125,210.79/187,816.50 = 36,466.47/x
  3. Step 3: Cross multiply
    125,210.79x = 187,816.50 × 36,466.47
  4. Step 4: Simplify right side
    125,210.79x = 6,849,004,762.76
  5. Step 5: Solve for x
    x = 6,849,004,762.76/125,210.79
  6. Step 6: Final answer
    x = 54,699.80

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1.5x scale

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.