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Finding the Fourth Proportional to 201,007,098.70, 301,510,648.05 and 64,692,482.20

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Solution

The fourth proportional to 201,007,098.70, 301,510,648.05 and 64,692,482.20 is: 97,038,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,007,098.70 : 301,510,648.05 = 64,692,482.20 : x
  2. Step 2: Convert to fraction form
    201,007,098.70/301,510,648.05 = 64,692,482.20/x
  3. Step 3: Cross multiply
    201,007,098.70x = 301,510,648.05 × 64,692,482.20
  4. Step 4: Simplify right side
    201,007,098.70x = 19,505,472,232,085,092
  5. Step 5: Solve for x
    x = 19,505,472,232,085,092/201,007,098.70
  6. Step 6: Final answer
    x = 97,038,723.30

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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.