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Finding the Fourth Proportional to 164,561.40, 246,842.10 and 64,688.40

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Solution

The fourth proportional to 164,561.40, 246,842.10 and 64,688.40 is: 97,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,561.40 : 246,842.10 = 64,688.40 : x
  2. Step 2: Convert to fraction form
    164,561.40/246,842.10 = 64,688.40/x
  3. Step 3: Cross multiply
    164,561.40x = 246,842.10 × 64,688.40
  4. Step 4: Simplify right side
    164,561.40x = 15,967,820,501.64
  5. Step 5: Solve for x
    x = 15,967,820,501.64/164,561.40
  6. Step 6: Final answer
    x = 97,032.60

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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.