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Finding the Fourth Proportional to 266,898.76, 368,453.56 and 153,699.64

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Solution

The fourth proportional to 266,898.76, 368,453.56 and 153,699.64 is: 212,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,898.76 : 368,453.56 = 153,699.64 : x
  2. Step 2: Convert to fraction form
    266,898.76/368,453.56 = 153,699.64/x
  3. Step 3: Cross multiply
    266,898.76x = 368,453.56 × 153,699.64
  4. Step 4: Simplify right side
    266,898.76x = 56,631,179,528.72
  5. Step 5: Solve for x
    x = 56,631,179,528.72/266,898.76
  6. Step 6: Final answer
    x = 212,182.25

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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.