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Finding the Fourth Proportional to 242,421.90, 334,588.96 and 146,980.86

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Solution

The fourth proportional to 242,421.90, 334,588.96 and 146,980.86 is: 202,861.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,421.90 : 334,588.96 = 146,980.86 : x
  2. Step 2: Convert to fraction form
    242,421.90/334,588.96 = 146,980.86/x
  3. Step 3: Cross multiply
    242,421.90x = 334,588.96 × 146,980.86
  4. Step 4: Simplify right side
    242,421.90x = 49,178,173,087.31
  5. Step 5: Solve for x
    x = 49,178,173,087.31/242,421.90
  6. Step 6: Final answer
    x = 202,861.92

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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.