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Finding the Fourth Proportional to 255,608.51, 352,766.00 and 153,666.98

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Solution

The fourth proportional to 255,608.51, 352,766.00 and 153,666.98 is: 212,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,608.51 : 352,766.00 = 153,666.98 : x
  2. Step 2: Convert to fraction form
    255,608.51/352,766.00 = 153,666.98/x
  3. Step 3: Cross multiply
    255,608.51x = 352,766.00 × 153,666.98
  4. Step 4: Simplify right side
    255,608.51x = 54,208,483,334.52
  5. Step 5: Solve for x
    x = 54,208,483,334.52/255,608.51
  6. Step 6: Final answer
    x = 212,076.21

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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.