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Finding the Fourth Proportional to 158,492,720.30, 221,436,312.10 and 158,492,720.30

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Solution

The fourth proportional to 158,492,720.30, 221,436,312.10 and 158,492,720.30 is: 221,436,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,492,720.30 : 221,436,312.10 = 158,492,720.30 : x
  2. Step 2: Convert to fraction form
    158,492,720.30/221,436,312.10 = 158,492,720.30/x
  3. Step 3: Cross multiply
    158,492,720.30x = 221,436,312.10 × 158,492,720.30
  4. Step 4: Simplify right side
    158,492,720.30x = 35,096,043,477,928,808
  5. Step 5: Solve for x
    x = 35,096,043,477,928,808/158,492,720.30
  6. Step 6: Final answer
    x = 221,436,312.10

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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.