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Finding the Fourth Proportional to 258,953.34, 357,389.67 and 145,798.14

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Solution

The fourth proportional to 258,953.34, 357,389.67 and 145,798.14 is: 201,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,953.34 : 357,389.67 = 145,798.14 : x
  2. Step 2: Convert to fraction form
    258,953.34/357,389.67 = 145,798.14/x
  3. Step 3: Cross multiply
    258,953.34x = 357,389.67 × 145,798.14
  4. Step 4: Simplify right side
    258,953.34x = 52,106,749,141.21
  5. Step 5: Solve for x
    x = 52,106,749,141.21/258,953.34
  6. Step 6: Final answer
    x = 201,220.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.