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Finding the Fourth Proportional to 64,424,513.60, 96,573,784.80 and 57,622,068.80

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Solution

The fourth proportional to 64,424,513.60, 96,573,784.80 and 57,622,068.80 is: 86,376,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,424,513.60 : 96,573,784.80 = 57,622,068.80 : x
  2. Step 2: Convert to fraction form
    64,424,513.60/96,573,784.80 = 57,622,068.80/x
  3. Step 3: Cross multiply
    64,424,513.60x = 96,573,784.80 × 57,622,068.80
  4. Step 4: Simplify right side
    64,424,513.60x = 5,564,781,272,021,994
  5. Step 5: Solve for x
    x = 5,564,781,272,021,994/64,424,513.60
  6. Step 6: Final answer
    x = 86,376,768.11

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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.