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Finding the Fourth Proportional to 158,652,242.40, 237,978,363.60 and 135,977,426.40

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Solution

The fourth proportional to 158,652,242.40, 237,978,363.60 and 135,977,426.40 is: 203,966,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,652,242.40 : 237,978,363.60 = 135,977,426.40 : x
  2. Step 2: Convert to fraction form
    158,652,242.40/237,978,363.60 = 135,977,426.40/x
  3. Step 3: Cross multiply
    158,652,242.40x = 237,978,363.60 × 135,977,426.40
  4. Step 4: Simplify right side
    158,652,242.40x = 32,359,685,421,211,440
  5. Step 5: Solve for x
    x = 32,359,685,421,211,440/158,652,242.40
  6. Step 6: Final answer
    x = 203,966,139.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.