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Finding the Fourth Proportional to 118,355,764.03, 163,335,998.54 and 66,144,798.14

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Solution

The fourth proportional to 118,355,764.03, 163,335,998.54 and 66,144,798.14 is: 91,282,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,355,764.03 : 163,335,998.54 = 66,144,798.14 : x
  2. Step 2: Convert to fraction form
    118,355,764.03/163,335,998.54 = 66,144,798.14/x
  3. Step 3: Cross multiply
    118,355,764.03x = 163,335,998.54 × 66,144,798.14
  4. Step 4: Simplify right side
    118,355,764.03x = 10,803,826,651,772,316
  5. Step 5: Solve for x
    x = 10,803,826,651,772,316/118,355,764.03
  6. Step 6: Final answer
    x = 91,282,640.44

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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.