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Finding the Fourth Proportional to 110,979,490.30, 155,626,378.10 and 110,979,490.30

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Solution

The fourth proportional to 110,979,490.30, 155,626,378.10 and 110,979,490.30 is: 155,626,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,979,490.30 : 155,626,378.10 = 110,979,490.30 : x
  2. Step 2: Convert to fraction form
    110,979,490.30/155,626,378.10 = 110,979,490.30/x
  3. Step 3: Cross multiply
    110,979,490.30x = 155,626,378.10 × 110,979,490.30
  4. Step 4: Simplify right side
    110,979,490.30x = 17,271,336,118,773,082
  5. Step 5: Solve for x
    x = 17,271,336,118,773,082/110,979,490.30
  6. Step 6: Final answer
    x = 155,626,378.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.