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Finding the Fourth Proportional to 270,742.34, 373,663.53 and 155,999.01

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Solution

The fourth proportional to 270,742.34, 373,663.53 and 155,999.01 is: 215,301.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,742.34 : 373,663.53 = 155,999.01 : x
  2. Step 2: Convert to fraction form
    270,742.34/373,663.53 = 155,999.01/x
  3. Step 3: Cross multiply
    270,742.34x = 373,663.53 × 155,999.01
  4. Step 4: Simplify right side
    270,742.34x = 58,291,140,753.11
  5. Step 5: Solve for x
    x = 58,291,140,753.11/270,742.34
  6. Step 6: Final answer
    x = 215,301.16

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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.