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Finding the Fourth Proportional to 76,514,946.90, 114,772,420.35 and 76,514,946.90

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Solution

The fourth proportional to 76,514,946.90, 114,772,420.35 and 76,514,946.90 is: 114,772,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,514,946.90 : 114,772,420.35 = 76,514,946.90 : x
  2. Step 2: Convert to fraction form
    76,514,946.90/114,772,420.35 = 76,514,946.90/x
  3. Step 3: Cross multiply
    76,514,946.90x = 114,772,420.35 × 76,514,946.90
  4. Step 4: Simplify right side
    76,514,946.90x = 8,781,805,648,664,730
  5. Step 5: Solve for x
    x = 8,781,805,648,664,730/76,514,946.90
  6. Step 6: Final answer
    x = 114,772,420.35

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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.