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Finding the Fourth Proportional to 164,457, 246,686.72 and 39,798

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Solution

The fourth proportional to 164,457, 246,686.72 and 39,798 is: 59,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,457 : 246,686.72 = 39,798 : x
  2. Step 2: Convert to fraction form
    164,457/246,686.72 = 39,798/x
  3. Step 3: Cross multiply
    164,457x = 246,686.72 × 39,798
  4. Step 4: Simplify right side
    164,457x = 9,817,637,883.57
  5. Step 5: Solve for x
    x = 9,817,637,883.57/164,457
  6. Step 6: Final answer
    x = 59,697.29

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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.