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Finding the Fourth Proportional to 215,460,045.90, 302,409,339.30 and 215,460,045.90

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Solution

The fourth proportional to 215,460,045.90, 302,409,339.30 and 215,460,045.90 is: 302,409,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,460,045.90 : 302,409,339.30 = 215,460,045.90 : x
  2. Step 2: Convert to fraction form
    215,460,045.90/302,409,339.30 = 215,460,045.90/x
  3. Step 3: Cross multiply
    215,460,045.90x = 302,409,339.30 × 215,460,045.90
  4. Step 4: Simplify right side
    215,460,045.90x = 65,157,130,126,166,680
  5. Step 5: Solve for x
    x = 65,157,130,126,166,680/215,460,045.90
  6. Step 6: Final answer
    x = 302,409,339.30

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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.