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Finding the Fourth Proportional to 375,626.16, 563,045.58 and 138,817.80

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Solution

The fourth proportional to 375,626.16, 563,045.58 and 138,817.80 is: 208,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,626.16 : 563,045.58 = 138,817.80 : x
  2. Step 2: Convert to fraction form
    375,626.16/563,045.58 = 138,817.80/x
  3. Step 3: Cross multiply
    375,626.16x = 563,045.58 × 138,817.80
  4. Step 4: Simplify right side
    375,626.16x = 78,160,748,715.32
  5. Step 5: Solve for x
    x = 78,160,748,715.32/375,626.16
  6. Step 6: Final answer
    x = 208,081.22

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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.