Finding the Fourth Proportional to 122,444,991.73, 168,974,090.57 and 67,440,848.23
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Solution
The fourth proportional to 122,444,991.73, 168,974,090.57 and 67,440,848.23 is: 93,068,371.65
Step by Step Solution
- Step 1: Write the proportion equation
122,444,991.73 : 168,974,090.57 = 67,440,848.23 : x - Step 2: Convert to fraction form
122,444,991.73/168,974,090.57 = 67,440,848.23/x - Step 3: Cross multiply
122,444,991.73x = 168,974,090.57 × 67,440,848.23 - Step 4: Simplify right side
122,444,991.73x = 11,395,755,996,933,644 - Step 5: Solve for x
x = 11,395,755,996,933,644/122,444,991.73 - Step 6: Final answer
x = 93,068,371.65
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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.