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Finding the Fourth Proportional to 266,779.60, 368,187.60 and 153,624.40

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Solution

The fourth proportional to 266,779.60, 368,187.60 and 153,624.40 is: 212,019.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,779.60 : 368,187.60 = 153,624.40 : x
  2. Step 2: Convert to fraction form
    266,779.60/368,187.60 = 153,624.40/x
  3. Step 3: Cross multiply
    266,779.60x = 368,187.60 × 153,624.40
  4. Step 4: Simplify right side
    266,779.60x = 56,562,599,137.44
  5. Step 5: Solve for x
    x = 56,562,599,137.44/266,779.60
  6. Step 6: Final answer
    x = 212,019.96

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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.