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Finding the Fourth Proportional to 370,977,152.20, 556,465,728.30 and 98,375,475.40

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Solution

The fourth proportional to 370,977,152.20, 556,465,728.30 and 98,375,475.40 is: 147,563,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,977,152.20 : 556,465,728.30 = 98,375,475.40 : x
  2. Step 2: Convert to fraction form
    370,977,152.20/556,465,728.30 = 98,375,475.40/x
  3. Step 3: Cross multiply
    370,977,152.20x = 556,465,728.30 × 98,375,475.40
  4. Step 4: Simplify right side
    370,977,152.20x = 54,742,580,565,319,736
  5. Step 5: Solve for x
    x = 54,742,580,565,319,736/370,977,152.20
  6. Step 6: Final answer
    x = 147,563,213.10

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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.