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Finding the Fourth Proportional to 64,746,038.40, 97,119,057.60 and 64,368,124.80

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Solution

The fourth proportional to 64,746,038.40, 97,119,057.60 and 64,368,124.80 is: 96,552,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,746,038.40 : 97,119,057.60 = 64,368,124.80 : x
  2. Step 2: Convert to fraction form
    64,746,038.40/97,119,057.60 = 64,368,124.80/x
  3. Step 3: Cross multiply
    64,746,038.40x = 97,119,057.60 × 64,368,124.80
  4. Step 4: Simplify right side
    64,746,038.40x = 6,251,371,620,055,188
  5. Step 5: Solve for x
    x = 6,251,371,620,055,188/64,746,038.40
  6. Step 6: Final answer
    x = 96,552,187.20

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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.