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Finding the Fourth Proportional to 255,624.63, 352,762.68 and 153,708.45

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Solution

The fourth proportional to 255,624.63, 352,762.68 and 153,708.45 is: 212,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,624.63 : 352,762.68 = 153,708.45 : x
  2. Step 2: Convert to fraction form
    255,624.63/352,762.68 = 153,708.45/x
  3. Step 3: Cross multiply
    255,624.63x = 352,762.68 × 153,708.45
  4. Step 4: Simplify right side
    255,624.63x = 54,222,604,760.65
  5. Step 5: Solve for x
    x = 54,222,604,760.65/255,624.63
  6. Step 6: Final answer
    x = 212,118.08

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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.