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Finding the Fourth Proportional to 221,887,641.60, 332,831,462.40 and 149,328,230.40

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Solution

The fourth proportional to 221,887,641.60, 332,831,462.40 and 149,328,230.40 is: 223,992,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,887,641.60 : 332,831,462.40 = 149,328,230.40 : x
  2. Step 2: Convert to fraction form
    221,887,641.60/332,831,462.40 = 149,328,230.40/x
  3. Step 3: Cross multiply
    221,887,641.60x = 332,831,462.40 × 149,328,230.40
  4. Step 4: Simplify right side
    221,887,641.60x = 49,701,133,301,636,136
  5. Step 5: Solve for x
    x = 49,701,133,301,636,136/221,887,641.60
  6. Step 6: Final answer
    x = 223,992,345.60

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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.