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Finding the Fourth Proportional to 64,470,582.72, 88,975,674.72 and 48,144,715.20

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Solution

The fourth proportional to 64,470,582.72, 88,975,674.72 and 48,144,715.20 is: 66,444,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,470,582.72 : 88,975,674.72 = 48,144,715.20 : x
  2. Step 2: Convert to fraction form
    64,470,582.72/88,975,674.72 = 48,144,715.20/x
  3. Step 3: Cross multiply
    64,470,582.72x = 88,975,674.72 × 48,144,715.20
  4. Step 4: Simplify right side
    64,470,582.72x = 4,283,708,519,122,240
  5. Step 5: Solve for x
    x = 4,283,708,519,122,240/64,470,582.72
  6. Step 6: Final answer
    x = 66,444,389.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.